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MRR / ARR Calculator — Net New MRR + ARR Annualisation

Free MRR / ARR calculator. Sum of new + expansion − contraction − churned MRR = Net New MRR (the cleanest health signal in SaaS). Plus auto-annualisation to ARR.

MRR / ARR Movement Calculator

Net new MRR (monthly)

$5,000

Implied annualised (ARR)

$60,000

The cleanest health signal in SaaS: Net New MRR = New + Expansion − Contraction − Churn. Negative = you're losing more than you're gaining each month. Investors look at this number before any other.

About this tool

Why Net New MRR is the metric

The single cleanest health signal in SaaS: Net New MRR = New + Expansion − Contraction − Churn. Negative means you're losing more than you're gaining each month. Investors look at this number before any other.

How to use the MRR / ARR Movement Calculator

Takes about a minute. No signup, no download, your data stays in your browser.

  1. 1
    Open the tool. Scroll up to the MRR / ARR Movement Calculator above — it loads instantly in your browser, no install needed.
  2. 2
    Enter your values. The fields come pre-filled with realistic defaults so you can see how it works — replace them with your own numbers.
  3. 3
    Read the result. The output updates instantly. Copy or share it — nothing is uploaded to a server, everything stays on your device.

Frequently asked questions

Common questions about the MRR / ARR Movement Calculator.

Is the MRR / ARR Movement Calculator free to use?

Yes. The MRR / ARR Movement Calculatoron 7BusyBoss is completely free — no signup, no paywall, no usage cap.

Do I need to sign up to use the MRR / ARR Movement Calculator?

No. The MRR / ARR Movement Calculatorworks instantly in your browser — no account needed. Signing in with Google is optional and only unlocks features like saving favorites and higher AI build limits.

Does the MRR / ARR Movement Calculator work on mobile?

Yes. Every tool on 7BusyBoss is mobile-responsive and works in any modern browser — Chrome, Safari, Firefox, Edge — on phones, tablets and desktops.

Is my data safe when I use the MRR / ARR Movement Calculator?

Yes. The MRR / ARR Movement Calculatorruns entirely in your browser — your inputs never leave your device unless the tool explicitly fetches public data (e.g. currency rates). We don't store the values you type.

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